US 12,282,811 B2
Image forming apparatus, control method thereof, and storage medium with calculating of processing length, which is length of print medium that can be processed by post processing device
Cho Ryo, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Nov. 9, 2023, as Appl. No. 18/505,327.
Claims priority of application No. 2022-185749 (JP), filed on Nov. 21, 2022.
Prior Publication US 2024/0169174 A1, May 23, 2024
Int. Cl. G06K 15/02 (2006.01); G06F 3/12 (2006.01); G06K 15/00 (2006.01)
CPC G06K 15/1868 (2013.01) [G06F 3/1208 (2013.01); G06F 3/1251 (2013.01); G06F 3/1256 (2013.01); G06K 15/024 (2013.01); G06K 15/4065 (2013.01); G06F 3/1284 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An image forming apparatus comprising:
an image forming mechanism configured to form a plurality of images while a print medium is being drawn out and being conveyed from a roll of the print medium; and
at least one processor or circuit configured to function as a plurality of units comprising:
(1) an acquisition unit configured to acquire an acceptable number for processing, which is a number of the plurality of images that can be processed by a post processing device configured to perform post processing of the print medium after image formation has been performed by the image forming mechanism;
(2) a calculation unit configured to calculate a number of divisions for the plurality of images in order to make the number of the images to be formed by the image forming mechanism equal to or smaller than the acceptable number for processing; and
(3) a control unit configured to control the image forming mechanism such that a positioning image used for positioning the plurality of images is formed with respect to the post processing device, for each of divided portions of the plurality of images that have been divided in accordance with the number of divisions,
wherein the acquisition unit calculates a processing length, which is a length of the print medium that can be processed by the post processing device, based on a maximum roll diameter and a maximum roll weight of the roll of the print medium that can be processed by the post processing device,
wherein the acquisition unit calculates a first processing length corresponding to the processing length by dividing, by the thickness of the print medium, the cross-sectional area of the maximum roll diameter of the print medium that can be processed by the post processing device,
wherein the acquisition unit calculates a second processing length corresponding to the processing length by dividing, by the weight per unit length of the print medium, the maximum roll weight of the print medium that can be processed by the post processing device,
wherein the acquisition unit acquires a third processing length corresponding to the processing length set to the post processing device, and
wherein the acquisition unit acquires, as a final processing length, a minimum value among the first processing length, the second processing length, and the third processing length.